Explain on the basis of valence bond theory that [Ni(CN)4]2− ion with square planar structure is diamagnetic and the [NiCl4]2− ion with tetrahedral geometry is paramagnetic. View Solution Amongst Ni(CO)4,[Ni(CN)4]2− and [NiCl4]2− View Solution Explain, Why [Ni(CO)_4] ...